2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan Metzmacher 2009
6 ** NOTE! The following LGPL license applies to the tevent
7 ** library. This does NOT imply that all of Samba is released
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of the GNU Lesser General Public
12 License as published by the Free Software Foundation; either
13 version 3 of the License, or (at your option) any later version.
15 This library is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public
21 License along with this library; if not, see <http://www.gnu.org/licenses/>.
25 #include "system/filesys.h"
26 #include "system/network.h"
28 #include "tsocket_internal.h"
30 static int tsocket_bsd_error_from_errno(int ret,
48 if (sys_errno == EINTR) {
53 if (sys_errno == EINPROGRESS) {
58 if (sys_errno == EAGAIN) {
64 if (sys_errno == EWOULDBLOCK) {
73 static int tsocket_bsd_common_prepare_fd(int fd, bool high_fd)
86 /* first make a fd >= 3 */
96 for (i=0; i<num_fds; i++) {
105 /* fd should be nonblocking. */
108 #define FLAG_TO_SET O_NONBLOCK
111 #define FLAG_TO_SET O_NDELAY
113 #define FLAG_TO_SET FNDELAY
117 if ((flags = fcntl(fd, F_GETFL)) == -1) {
121 flags |= FLAG_TO_SET;
122 if (fcntl(fd, F_SETFL, flags) == -1) {
128 /* fd should be closed on exec() */
130 result = flags = fcntl(fd, F_GETFD, 0);
133 result = fcntl(fd, F_SETFD, flags);
150 static ssize_t tsocket_bsd_pending(int fd)
156 ret = ioctl(fd, FIONREAD, &value);
162 /* this should not be reached */
175 * if no data is available check if the socket is in error state. For
176 * dgram sockets it's the way to return ICMP error messages of
177 * connected sockets to the caller.
179 ret = getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &len);
190 static const struct tsocket_address_ops tsocket_address_bsd_ops;
192 struct tsocket_address_bsd {
195 struct sockaddr_in in;
197 struct sockaddr_in6 in6;
199 struct sockaddr_un un;
200 struct sockaddr_storage ss;
204 static int _tsocket_address_bsd_from_sockaddr(TALLOC_CTX *mem_ctx,
207 struct tsocket_address **_addr,
208 const char *location)
210 struct tsocket_address *addr;
211 struct tsocket_address_bsd *bsda;
213 switch (sa->sa_family) {
215 if (sa_len < sizeof(struct sockaddr_un)) {
221 if (sa_len < sizeof(struct sockaddr_in)) {
228 if (sa_len < sizeof(struct sockaddr_in6)) {
235 errno = EAFNOSUPPORT;
239 if (sa_len > sizeof(struct sockaddr_storage)) {
244 addr = tsocket_address_create(mem_ctx,
245 &tsocket_address_bsd_ops,
247 struct tsocket_address_bsd,
256 memcpy(&bsda->u.ss, sa, sa_len);
262 int _tsocket_address_inet_from_strings(TALLOC_CTX *mem_ctx,
266 struct tsocket_address **_addr,
267 const char *location)
269 struct addrinfo hints;
270 struct addrinfo *result = NULL;
276 * we use SOCKET_STREAM here to get just one result
277 * back from getaddrinfo().
279 hints.ai_socktype = SOCK_STREAM;
280 hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
282 if (strcasecmp(fam, "ip") == 0) {
283 hints.ai_family = AF_UNSPEC;
291 } else if (strcasecmp(fam, "ipv4") == 0) {
292 hints.ai_family = AF_INET;
297 } else if (strcasecmp(fam, "ipv6") == 0) {
298 hints.ai_family = AF_INET6;
304 errno = EAFNOSUPPORT;
308 snprintf(port_str, sizeof(port_str) - 1, "%u", port);
310 ret = getaddrinfo(addr, port_str, &hints, &result);
321 if (result->ai_socktype != SOCK_STREAM) {
327 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
335 freeaddrinfo(result);
340 char *tsocket_address_inet_addr_string(const struct tsocket_address *addr,
343 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
344 struct tsocket_address_bsd);
345 char addr_str[INET6_ADDRSTRLEN+1];
353 switch (bsda->u.sa.sa_family) {
355 str = inet_ntop(bsda->u.in.sin_family,
356 &bsda->u.in.sin_addr,
357 addr_str, sizeof(addr_str));
361 str = inet_ntop(bsda->u.in6.sin6_family,
362 &bsda->u.in6.sin6_addr,
363 addr_str, sizeof(addr_str));
375 return talloc_strdup(mem_ctx, str);
378 uint16_t tsocket_address_inet_port(const struct tsocket_address *addr)
380 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
381 struct tsocket_address_bsd);
389 switch (bsda->u.sa.sa_family) {
391 port = ntohs(bsda->u.in.sin_port);
395 port = ntohs(bsda->u.in6.sin6_port);
406 int tsocket_address_inet_set_port(struct tsocket_address *addr,
409 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
410 struct tsocket_address_bsd);
417 switch (bsda->u.sa.sa_family) {
419 bsda->u.in.sin_port = htons(port);
423 bsda->u.in6.sin6_port = htons(port);
434 int _tsocket_address_unix_from_path(TALLOC_CTX *mem_ctx,
436 struct tsocket_address **_addr,
437 const char *location)
439 struct sockaddr_un un;
448 un.sun_family = AF_UNIX;
449 strncpy(un.sun_path, path, sizeof(un.sun_path));
451 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
452 (struct sockaddr *)p,
460 char *tsocket_address_unix_path(const struct tsocket_address *addr,
463 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
464 struct tsocket_address_bsd);
472 switch (bsda->u.sa.sa_family) {
474 str = bsda->u.un.sun_path;
481 return talloc_strdup(mem_ctx, str);
484 static char *tsocket_address_bsd_string(const struct tsocket_address *addr,
487 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
488 struct tsocket_address_bsd);
491 const char *prefix = NULL;
494 switch (bsda->u.sa.sa_family) {
496 return talloc_asprintf(mem_ctx, "unix:%s",
497 bsda->u.un.sun_path);
511 addr_str = tsocket_address_inet_addr_string(addr, mem_ctx);
516 port = tsocket_address_inet_port(addr);
518 str = talloc_asprintf(mem_ctx, "%s:%s:%u",
519 prefix, addr_str, port);
520 talloc_free(addr_str);
525 static struct tsocket_address *tsocket_address_bsd_copy(const struct tsocket_address *addr,
527 const char *location)
529 struct tsocket_address_bsd *bsda = talloc_get_type(addr->private_data,
530 struct tsocket_address_bsd);
531 struct tsocket_address *copy;
534 ret = _tsocket_address_bsd_from_sockaddr(mem_ctx,
546 static const struct tsocket_address_ops tsocket_address_bsd_ops = {
548 .string = tsocket_address_bsd_string,
549 .copy = tsocket_address_bsd_copy,
556 struct tevent_fd *fde;
558 void *readable_private;
559 void (*readable_handler)(void *private_data);
560 void *writeable_private;
561 void (*writeable_handler)(void *private_data);
564 static void tdgram_bsd_fde_handler(struct tevent_context *ev,
565 struct tevent_fd *fde,
569 struct tdgram_bsd *bsds = talloc_get_type_abort(private_data,
572 if (flags & TEVENT_FD_WRITE) {
573 bsds->writeable_handler(bsds->writeable_private);
576 if (flags & TEVENT_FD_READ) {
577 if (!bsds->readable_handler) {
578 TEVENT_FD_NOT_READABLE(bsds->fde);
581 bsds->readable_handler(bsds->readable_private);
586 static int tdgram_bsd_set_readable_handler(struct tdgram_bsd *bsds,
587 struct tevent_context *ev,
588 void (*handler)(void *private_data),
596 if (!bsds->readable_handler) {
599 bsds->readable_handler = NULL;
600 bsds->readable_private = NULL;
605 /* read and write must use the same tevent_context */
606 if (bsds->event_ptr != ev) {
607 if (bsds->readable_handler || bsds->writeable_handler) {
611 bsds->event_ptr = NULL;
612 TALLOC_FREE(bsds->fde);
615 if (tevent_fd_get_flags(bsds->fde) == 0) {
616 TALLOC_FREE(bsds->fde);
618 bsds->fde = tevent_add_fd(ev, bsds,
619 bsds->fd, TEVENT_FD_READ,
620 tdgram_bsd_fde_handler,
627 /* cache the event context we're running on */
628 bsds->event_ptr = ev;
629 } else if (!bsds->readable_handler) {
630 TEVENT_FD_READABLE(bsds->fde);
633 bsds->readable_handler = handler;
634 bsds->readable_private = private_data;
639 static int tdgram_bsd_set_writeable_handler(struct tdgram_bsd *bsds,
640 struct tevent_context *ev,
641 void (*handler)(void *private_data),
649 if (!bsds->writeable_handler) {
652 bsds->writeable_handler = NULL;
653 bsds->writeable_private = NULL;
654 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
659 /* read and write must use the same tevent_context */
660 if (bsds->event_ptr != ev) {
661 if (bsds->readable_handler || bsds->writeable_handler) {
665 bsds->event_ptr = NULL;
666 TALLOC_FREE(bsds->fde);
669 if (tevent_fd_get_flags(bsds->fde) == 0) {
670 TALLOC_FREE(bsds->fde);
672 bsds->fde = tevent_add_fd(ev, bsds,
673 bsds->fd, TEVENT_FD_WRITE,
674 tdgram_bsd_fde_handler,
681 /* cache the event context we're running on */
682 bsds->event_ptr = ev;
683 } else if (!bsds->writeable_handler) {
684 TEVENT_FD_WRITEABLE(bsds->fde);
687 bsds->writeable_handler = handler;
688 bsds->writeable_private = private_data;
693 struct tdgram_bsd_recvfrom_state {
694 struct tdgram_context *dgram;
698 struct tsocket_address *src;
701 static int tdgram_bsd_recvfrom_destructor(struct tdgram_bsd_recvfrom_state *state)
703 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
706 tdgram_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
711 static void tdgram_bsd_recvfrom_handler(void *private_data);
713 static struct tevent_req *tdgram_bsd_recvfrom_send(TALLOC_CTX *mem_ctx,
714 struct tevent_context *ev,
715 struct tdgram_context *dgram)
717 struct tevent_req *req;
718 struct tdgram_bsd_recvfrom_state *state;
719 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
722 req = tevent_req_create(mem_ctx, &state,
723 struct tdgram_bsd_recvfrom_state);
728 state->dgram = dgram;
733 talloc_set_destructor(state, tdgram_bsd_recvfrom_destructor);
735 if (bsds->fd == -1) {
736 tevent_req_error(req, ENOTCONN);
741 * this is a fast path, not waiting for the
742 * socket to become explicit readable gains
743 * about 10%-20% performance in benchmark tests.
745 tdgram_bsd_recvfrom_handler(req);
746 if (!tevent_req_is_in_progress(req)) {
750 ret = tdgram_bsd_set_readable_handler(bsds, ev,
751 tdgram_bsd_recvfrom_handler,
754 tevent_req_error(req, errno);
761 tevent_req_post(req, ev);
765 static void tdgram_bsd_recvfrom_handler(void *private_data)
767 struct tevent_req *req = talloc_get_type_abort(private_data,
769 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
770 struct tdgram_bsd_recvfrom_state);
771 struct tdgram_context *dgram = state->dgram;
772 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
773 struct tsocket_address_bsd *bsda;
775 struct sockaddr *sa = NULL;
776 socklen_t sa_len = 0;
780 ret = tsocket_bsd_pending(bsds->fd);
785 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
790 if (tevent_req_error(req, err)) {
794 state->buf = talloc_array(state, uint8_t, ret);
795 if (tevent_req_nomem(state->buf, req)) {
800 state->src = tsocket_address_create(state,
801 &tsocket_address_bsd_ops,
803 struct tsocket_address_bsd,
804 __location__ "bsd_recvfrom");
805 if (tevent_req_nomem(state->src, req)) {
812 sa_len = sizeof(bsda->u.ss);
814 * for unix sockets we can't use the size of sockaddr_storage
815 * we would get EINVAL
817 if (bsda->u.sa.sa_family == AF_UNIX) {
818 sa_len = sizeof(bsda->u.un);
821 ret = recvfrom(bsds->fd, state->buf, state->len, 0, sa, &sa_len);
822 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
827 if (tevent_req_error(req, err)) {
831 if (ret != state->len) {
832 tevent_req_error(req, EIO);
836 tevent_req_done(req);
839 static ssize_t tdgram_bsd_recvfrom_recv(struct tevent_req *req,
843 struct tsocket_address **src)
845 struct tdgram_bsd_recvfrom_state *state = tevent_req_data(req,
846 struct tdgram_bsd_recvfrom_state);
849 ret = tsocket_simple_int_recv(req, perrno);
851 *buf = talloc_move(mem_ctx, &state->buf);
854 *src = talloc_move(mem_ctx, &state->src);
858 tevent_req_received(req);
862 struct tdgram_bsd_sendto_state {
863 struct tdgram_context *dgram;
867 const struct tsocket_address *dst;
872 static int tdgram_bsd_sendto_destructor(struct tdgram_bsd_sendto_state *state)
874 struct tdgram_bsd *bsds = tdgram_context_data(state->dgram,
877 tdgram_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
882 static void tdgram_bsd_sendto_handler(void *private_data);
884 static struct tevent_req *tdgram_bsd_sendto_send(TALLOC_CTX *mem_ctx,
885 struct tevent_context *ev,
886 struct tdgram_context *dgram,
889 const struct tsocket_address *dst)
891 struct tevent_req *req;
892 struct tdgram_bsd_sendto_state *state;
893 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
896 req = tevent_req_create(mem_ctx, &state,
897 struct tdgram_bsd_sendto_state);
902 state->dgram = dgram;
908 talloc_set_destructor(state, tdgram_bsd_sendto_destructor);
910 if (bsds->fd == -1) {
911 tevent_req_error(req, ENOTCONN);
916 * this is a fast path, not waiting for the
917 * socket to become explicit writeable gains
918 * about 10%-20% performance in benchmark tests.
920 tdgram_bsd_sendto_handler(req);
921 if (!tevent_req_is_in_progress(req)) {
925 ret = tdgram_bsd_set_writeable_handler(bsds, ev,
926 tdgram_bsd_sendto_handler,
929 tevent_req_error(req, errno);
936 tevent_req_post(req, ev);
940 static void tdgram_bsd_sendto_handler(void *private_data)
942 struct tevent_req *req = talloc_get_type_abort(private_data,
944 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
945 struct tdgram_bsd_sendto_state);
946 struct tdgram_context *dgram = state->dgram;
947 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
948 struct sockaddr *sa = NULL;
949 socklen_t sa_len = 0;
955 struct tsocket_address_bsd *bsda =
956 talloc_get_type(state->dst->private_data,
957 struct tsocket_address_bsd);
960 sa_len = sizeof(bsda->u.ss);
962 * for unix sockets we can't use the size of sockaddr_storage
963 * we would get EINVAL
965 if (bsda->u.sa.sa_family == AF_UNIX) {
966 sa_len = sizeof(bsda->u.un);
970 ret = sendto(bsds->fd, state->buf, state->len, 0, sa, sa_len);
971 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
976 if (tevent_req_error(req, err)) {
982 tevent_req_done(req);
985 static ssize_t tdgram_bsd_sendto_recv(struct tevent_req *req, int *perrno)
987 struct tdgram_bsd_sendto_state *state = tevent_req_data(req,
988 struct tdgram_bsd_sendto_state);
991 ret = tsocket_simple_int_recv(req, perrno);
996 tevent_req_received(req);
1000 struct tdgram_bsd_disconnect_state {
1004 static struct tevent_req *tdgram_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1005 struct tevent_context *ev,
1006 struct tdgram_context *dgram)
1008 struct tdgram_bsd *bsds = tdgram_context_data(dgram, struct tdgram_bsd);
1009 struct tevent_req *req;
1010 struct tdgram_bsd_disconnect_state *state;
1015 req = tevent_req_create(mem_ctx, &state,
1016 struct tdgram_bsd_disconnect_state);
1021 if (bsds->fd == -1) {
1022 tevent_req_error(req, ENOTCONN);
1026 ret = close(bsds->fd);
1028 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1029 if (tevent_req_error(req, err)) {
1033 tevent_req_done(req);
1035 tevent_req_post(req, ev);
1039 static int tdgram_bsd_disconnect_recv(struct tevent_req *req,
1044 ret = tsocket_simple_int_recv(req, perrno);
1046 tevent_req_received(req);
1050 static const struct tdgram_context_ops tdgram_bsd_ops = {
1053 .recvfrom_send = tdgram_bsd_recvfrom_send,
1054 .recvfrom_recv = tdgram_bsd_recvfrom_recv,
1056 .sendto_send = tdgram_bsd_sendto_send,
1057 .sendto_recv = tdgram_bsd_sendto_recv,
1059 .disconnect_send = tdgram_bsd_disconnect_send,
1060 .disconnect_recv = tdgram_bsd_disconnect_recv,
1063 static int tdgram_bsd_destructor(struct tdgram_bsd *bsds)
1065 TALLOC_FREE(bsds->fde);
1066 if (bsds->fd != -1) {
1073 static int tdgram_bsd_dgram_socket(const struct tsocket_address *local,
1074 const struct tsocket_address *remote,
1076 TALLOC_CTX *mem_ctx,
1077 struct tdgram_context **_dgram,
1078 const char *location)
1080 struct tsocket_address_bsd *lbsda =
1081 talloc_get_type_abort(local->private_data,
1082 struct tsocket_address_bsd);
1083 struct tsocket_address_bsd *rbsda = NULL;
1084 struct tdgram_context *dgram;
1085 struct tdgram_bsd *bsds;
1088 bool do_bind = false;
1089 bool do_reuseaddr = false;
1090 socklen_t sa_len = sizeof(lbsda->u.ss);
1093 rbsda = talloc_get_type_abort(remote->private_data,
1094 struct tsocket_address_bsd);
1097 switch (lbsda->u.sa.sa_family) {
1103 if (lbsda->u.un.sun_path[0] != 0) {
1104 do_reuseaddr = true;
1108 * for unix sockets we can't use the size of sockaddr_storage
1109 * we would get EINVAL
1111 sa_len = sizeof(lbsda->u.un);
1114 if (lbsda->u.in.sin_port != 0) {
1115 do_reuseaddr = true;
1118 if (lbsda->u.in.sin_addr.s_addr == INADDR_ANY) {
1124 if (lbsda->u.in6.sin6_port != 0) {
1125 do_reuseaddr = true;
1128 if (memcmp(&in6addr_any,
1129 &lbsda->u.in6.sin6_addr,
1130 sizeof(in6addr_any)) != 0) {
1140 fd = socket(lbsda->u.sa.sa_family, SOCK_DGRAM, 0);
1145 fd = tsocket_bsd_common_prepare_fd(fd, true);
1150 dgram = tdgram_context_create(mem_ctx,
1156 int saved_errno = errno;
1158 errno = saved_errno;
1163 talloc_set_destructor(bsds, tdgram_bsd_destructor);
1168 ret = setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
1169 (const void *)&val, sizeof(val));
1171 int saved_errno = errno;
1173 errno = saved_errno;
1181 ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
1182 (const void *)&val, sizeof(val));
1184 int saved_errno = errno;
1186 errno = saved_errno;
1192 ret = bind(fd, &lbsda->u.sa, sa_len);
1194 int saved_errno = errno;
1196 errno = saved_errno;
1202 ret = connect(fd, &rbsda->u.sa, sa_len);
1204 int saved_errno = errno;
1206 errno = saved_errno;
1215 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
1216 const struct tsocket_address *remote,
1217 TALLOC_CTX *mem_ctx,
1218 struct tdgram_context **dgram,
1219 const char *location)
1221 struct tsocket_address_bsd *lbsda =
1222 talloc_get_type_abort(local->private_data,
1223 struct tsocket_address_bsd);
1226 switch (lbsda->u.sa.sa_family) {
1238 ret = tdgram_bsd_dgram_socket(local, remote, false,
1239 mem_ctx, dgram, location);
1244 int _tdgram_unix_socket(const struct tsocket_address *local,
1245 const struct tsocket_address *remote,
1246 TALLOC_CTX *mem_ctx,
1247 struct tdgram_context **dgram,
1248 const char *location)
1250 struct tsocket_address_bsd *lbsda =
1251 talloc_get_type_abort(local->private_data,
1252 struct tsocket_address_bsd);
1255 switch (lbsda->u.sa.sa_family) {
1263 ret = tdgram_bsd_dgram_socket(local, remote, false,
1264 mem_ctx, dgram, location);
1269 struct tstream_bsd {
1273 struct tevent_fd *fde;
1275 void *readable_private;
1276 void (*readable_handler)(void *private_data);
1277 void *writeable_private;
1278 void (*writeable_handler)(void *private_data);
1281 static void tstream_bsd_fde_handler(struct tevent_context *ev,
1282 struct tevent_fd *fde,
1286 struct tstream_bsd *bsds = talloc_get_type_abort(private_data,
1287 struct tstream_bsd);
1289 if (flags & TEVENT_FD_WRITE) {
1290 bsds->writeable_handler(bsds->writeable_private);
1293 if (flags & TEVENT_FD_READ) {
1294 if (!bsds->readable_handler) {
1295 if (bsds->writeable_handler) {
1296 bsds->writeable_handler(bsds->writeable_private);
1299 TEVENT_FD_NOT_READABLE(bsds->fde);
1302 bsds->readable_handler(bsds->readable_private);
1307 static int tstream_bsd_set_readable_handler(struct tstream_bsd *bsds,
1308 struct tevent_context *ev,
1309 void (*handler)(void *private_data),
1317 if (!bsds->readable_handler) {
1320 bsds->readable_handler = NULL;
1321 bsds->readable_private = NULL;
1326 /* read and write must use the same tevent_context */
1327 if (bsds->event_ptr != ev) {
1328 if (bsds->readable_handler || bsds->writeable_handler) {
1332 bsds->event_ptr = NULL;
1333 TALLOC_FREE(bsds->fde);
1336 if (tevent_fd_get_flags(bsds->fde) == 0) {
1337 TALLOC_FREE(bsds->fde);
1339 bsds->fde = tevent_add_fd(ev, bsds,
1340 bsds->fd, TEVENT_FD_READ,
1341 tstream_bsd_fde_handler,
1348 /* cache the event context we're running on */
1349 bsds->event_ptr = ev;
1350 } else if (!bsds->readable_handler) {
1351 TEVENT_FD_READABLE(bsds->fde);
1354 bsds->readable_handler = handler;
1355 bsds->readable_private = private_data;
1360 static int tstream_bsd_set_writeable_handler(struct tstream_bsd *bsds,
1361 struct tevent_context *ev,
1362 void (*handler)(void *private_data),
1370 if (!bsds->writeable_handler) {
1373 bsds->writeable_handler = NULL;
1374 bsds->writeable_private = NULL;
1375 TEVENT_FD_NOT_WRITEABLE(bsds->fde);
1380 /* read and write must use the same tevent_context */
1381 if (bsds->event_ptr != ev) {
1382 if (bsds->readable_handler || bsds->writeable_handler) {
1386 bsds->event_ptr = NULL;
1387 TALLOC_FREE(bsds->fde);
1390 if (tevent_fd_get_flags(bsds->fde) == 0) {
1391 TALLOC_FREE(bsds->fde);
1393 bsds->fde = tevent_add_fd(ev, bsds,
1395 TEVENT_FD_READ | TEVENT_FD_WRITE,
1396 tstream_bsd_fde_handler,
1403 /* cache the event context we're running on */
1404 bsds->event_ptr = ev;
1405 } else if (!bsds->writeable_handler) {
1406 uint16_t flags = tevent_fd_get_flags(bsds->fde);
1407 flags |= TEVENT_FD_READ | TEVENT_FD_WRITE;
1408 tevent_fd_set_flags(bsds->fde, flags);
1411 bsds->writeable_handler = handler;
1412 bsds->writeable_private = private_data;
1417 static ssize_t tstream_bsd_pending_bytes(struct tstream_context *stream)
1419 struct tstream_bsd *bsds = tstream_context_data(stream,
1420 struct tstream_bsd);
1423 if (bsds->fd == -1) {
1428 ret = tsocket_bsd_pending(bsds->fd);
1433 struct tstream_bsd_readv_state {
1434 struct tstream_context *stream;
1436 struct iovec *vector;
1442 static int tstream_bsd_readv_destructor(struct tstream_bsd_readv_state *state)
1444 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1445 struct tstream_bsd);
1447 tstream_bsd_set_readable_handler(bsds, NULL, NULL, NULL);
1452 static void tstream_bsd_readv_handler(void *private_data);
1454 static struct tevent_req *tstream_bsd_readv_send(TALLOC_CTX *mem_ctx,
1455 struct tevent_context *ev,
1456 struct tstream_context *stream,
1457 struct iovec *vector,
1460 struct tevent_req *req;
1461 struct tstream_bsd_readv_state *state;
1462 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1465 req = tevent_req_create(mem_ctx, &state,
1466 struct tstream_bsd_readv_state);
1471 state->stream = stream;
1472 /* we make a copy of the vector so that we can modify it */
1473 state->vector = talloc_array(state, struct iovec, count);
1474 if (tevent_req_nomem(state->vector, req)) {
1477 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1478 state->count = count;
1481 talloc_set_destructor(state, tstream_bsd_readv_destructor);
1483 if (bsds->fd == -1) {
1484 tevent_req_error(req, ENOTCONN);
1489 * this is a fast path, not waiting for the
1490 * socket to become explicit readable gains
1491 * about 10%-20% performance in benchmark tests.
1493 tstream_bsd_readv_handler(req);
1494 if (!tevent_req_is_in_progress(req)) {
1498 ret = tstream_bsd_set_readable_handler(bsds, ev,
1499 tstream_bsd_readv_handler,
1502 tevent_req_error(req, errno);
1509 tevent_req_post(req, ev);
1513 static void tstream_bsd_readv_handler(void *private_data)
1515 struct tevent_req *req = talloc_get_type_abort(private_data,
1517 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1518 struct tstream_bsd_readv_state);
1519 struct tstream_context *stream = state->stream;
1520 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1525 ret = readv(bsds->fd, state->vector, state->count);
1527 /* propagate end of file */
1528 tevent_req_error(req, EPIPE);
1531 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1536 if (tevent_req_error(req, err)) {
1543 if (ret < state->vector[0].iov_len) {
1545 base = (uint8_t *)state->vector[0].iov_base;
1547 state->vector[0].iov_base = base;
1548 state->vector[0].iov_len -= ret;
1551 ret -= state->vector[0].iov_len;
1557 * there're maybe some empty vectors at the end
1558 * which we need to skip, otherwise we would get
1559 * ret == 0 from the readv() call and return EPIPE
1561 while (state->count > 0) {
1562 if (state->vector[0].iov_len > 0) {
1569 if (state->count > 0) {
1570 /* we have more to read */
1574 tevent_req_done(req);
1577 static int tstream_bsd_readv_recv(struct tevent_req *req,
1580 struct tstream_bsd_readv_state *state = tevent_req_data(req,
1581 struct tstream_bsd_readv_state);
1584 ret = tsocket_simple_int_recv(req, perrno);
1589 tevent_req_received(req);
1593 struct tstream_bsd_writev_state {
1594 struct tstream_context *stream;
1596 struct iovec *vector;
1602 static int tstream_bsd_writev_destructor(struct tstream_bsd_writev_state *state)
1604 struct tstream_bsd *bsds = tstream_context_data(state->stream,
1605 struct tstream_bsd);
1607 tstream_bsd_set_writeable_handler(bsds, NULL, NULL, NULL);
1612 static void tstream_bsd_writev_handler(void *private_data);
1614 static struct tevent_req *tstream_bsd_writev_send(TALLOC_CTX *mem_ctx,
1615 struct tevent_context *ev,
1616 struct tstream_context *stream,
1617 const struct iovec *vector,
1620 struct tevent_req *req;
1621 struct tstream_bsd_writev_state *state;
1622 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1625 req = tevent_req_create(mem_ctx, &state,
1626 struct tstream_bsd_writev_state);
1631 state->stream = stream;
1632 /* we make a copy of the vector so that we can modify it */
1633 state->vector = talloc_array(state, struct iovec, count);
1634 if (tevent_req_nomem(state->vector, req)) {
1637 memcpy(state->vector, vector, sizeof(struct iovec)*count);
1638 state->count = count;
1641 talloc_set_destructor(state, tstream_bsd_writev_destructor);
1643 if (bsds->fd == -1) {
1644 tevent_req_error(req, ENOTCONN);
1649 * this is a fast path, not waiting for the
1650 * socket to become explicit writeable gains
1651 * about 10%-20% performance in benchmark tests.
1653 tstream_bsd_writev_handler(req);
1654 if (!tevent_req_is_in_progress(req)) {
1658 ret = tstream_bsd_set_writeable_handler(bsds, ev,
1659 tstream_bsd_writev_handler,
1662 tevent_req_error(req, errno);
1669 tevent_req_post(req, ev);
1673 static void tstream_bsd_writev_handler(void *private_data)
1675 struct tevent_req *req = talloc_get_type_abort(private_data,
1677 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1678 struct tstream_bsd_writev_state);
1679 struct tstream_context *stream = state->stream;
1680 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1685 ret = writev(bsds->fd, state->vector, state->count);
1687 /* propagate end of file */
1688 tevent_req_error(req, EPIPE);
1691 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1696 if (tevent_req_error(req, err)) {
1703 if (ret < state->vector[0].iov_len) {
1705 base = (uint8_t *)state->vector[0].iov_base;
1707 state->vector[0].iov_base = base;
1708 state->vector[0].iov_len -= ret;
1711 ret -= state->vector[0].iov_len;
1717 * there're maybe some empty vectors at the end
1718 * which we need to skip, otherwise we would get
1719 * ret == 0 from the writev() call and return EPIPE
1721 while (state->count > 0) {
1722 if (state->vector[0].iov_len > 0) {
1729 if (state->count > 0) {
1730 /* we have more to read */
1734 tevent_req_done(req);
1737 static int tstream_bsd_writev_recv(struct tevent_req *req, int *perrno)
1739 struct tstream_bsd_writev_state *state = tevent_req_data(req,
1740 struct tstream_bsd_writev_state);
1743 ret = tsocket_simple_int_recv(req, perrno);
1748 tevent_req_received(req);
1752 struct tstream_bsd_disconnect_state {
1756 static struct tevent_req *tstream_bsd_disconnect_send(TALLOC_CTX *mem_ctx,
1757 struct tevent_context *ev,
1758 struct tstream_context *stream)
1760 struct tstream_bsd *bsds = tstream_context_data(stream, struct tstream_bsd);
1761 struct tevent_req *req;
1762 struct tstream_bsd_disconnect_state *state;
1767 req = tevent_req_create(mem_ctx, &state,
1768 struct tstream_bsd_disconnect_state);
1773 if (bsds->fd == -1) {
1774 tevent_req_error(req, ENOTCONN);
1778 ret = close(bsds->fd);
1780 err = tsocket_bsd_error_from_errno(ret, errno, &dummy);
1781 if (tevent_req_error(req, err)) {
1785 tevent_req_done(req);
1787 tevent_req_post(req, ev);
1791 static int tstream_bsd_disconnect_recv(struct tevent_req *req,
1796 ret = tsocket_simple_int_recv(req, perrno);
1798 tevent_req_received(req);
1802 static const struct tstream_context_ops tstream_bsd_ops = {
1805 .pending_bytes = tstream_bsd_pending_bytes,
1807 .readv_send = tstream_bsd_readv_send,
1808 .readv_recv = tstream_bsd_readv_recv,
1810 .writev_send = tstream_bsd_writev_send,
1811 .writev_recv = tstream_bsd_writev_recv,
1813 .disconnect_send = tstream_bsd_disconnect_send,
1814 .disconnect_recv = tstream_bsd_disconnect_recv,
1817 static int tstream_bsd_destructor(struct tstream_bsd *bsds)
1819 TALLOC_FREE(bsds->fde);
1820 if (bsds->fd != -1) {
1827 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
1829 struct tstream_context **_stream,
1830 const char *location)
1832 struct tstream_context *stream;
1833 struct tstream_bsd *bsds;
1835 stream = tstream_context_create(mem_ctx,
1845 talloc_set_destructor(bsds, tstream_bsd_destructor);
1851 struct tstream_bsd_connect_state {
1853 struct tevent_fd *fde;
1854 struct tstream_conext *stream;
1857 static int tstream_bsd_connect_destructor(struct tstream_bsd_connect_state *state)
1859 TALLOC_FREE(state->fde);
1860 if (state->fd != -1) {
1868 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
1869 struct tevent_fd *fde,
1871 void *private_data);
1873 static struct tevent_req * tstream_bsd_connect_send(TALLOC_CTX *mem_ctx,
1874 struct tevent_context *ev,
1876 const struct tsocket_address *local,
1877 const struct tsocket_address *remote)
1879 struct tevent_req *req;
1880 struct tstream_bsd_connect_state *state;
1881 struct tsocket_address_bsd *lbsda =
1882 talloc_get_type_abort(local->private_data,
1883 struct tsocket_address_bsd);
1884 struct tsocket_address_bsd *rbsda =
1885 talloc_get_type_abort(remote->private_data,
1886 struct tsocket_address_bsd);
1890 bool do_bind = false;
1891 bool do_reuseaddr = false;
1892 socklen_t sa_len = sizeof(rbsda->u.ss);
1894 req = tevent_req_create(mem_ctx, &state,
1895 struct tstream_bsd_connect_state);
1902 talloc_set_destructor(state, tstream_bsd_connect_destructor);
1904 /* give the wrappers a chance to report an error */
1905 if (sys_errno != 0) {
1906 tevent_req_error(req, sys_errno);
1910 switch (lbsda->u.sa.sa_family) {
1912 if (lbsda->u.un.sun_path[0] != 0) {
1913 do_reuseaddr = true;
1917 * for unix sockets we can't use the size of sockaddr_storage
1918 * we would get EINVAL
1920 sa_len = sizeof(rbsda->u.un);
1923 if (lbsda->u.in.sin_port != 0) {
1924 do_reuseaddr = true;
1927 if (lbsda->u.in.sin_addr.s_addr == INADDR_ANY) {
1933 if (lbsda->u.in6.sin6_port != 0) {
1934 do_reuseaddr = true;
1937 if (memcmp(&in6addr_any,
1938 &lbsda->u.in6.sin6_addr,
1939 sizeof(in6addr_any)) != 0) {
1945 tevent_req_error(req, EINVAL);
1949 state->fd = socket(lbsda->u.sa.sa_family, SOCK_STREAM, 0);
1950 if (state->fd == -1) {
1951 tevent_req_error(req, errno);
1955 state->fd = tsocket_bsd_common_prepare_fd(state->fd, true);
1956 if (state->fd == -1) {
1957 tevent_req_error(req, errno);
1964 ret = setsockopt(state->fd, SOL_SOCKET, SO_REUSEADDR,
1965 (const void *)&val, sizeof(val));
1967 tevent_req_error(req, errno);
1973 ret = bind(state->fd, &lbsda->u.sa, sizeof(lbsda->u.ss));
1975 tevent_req_error(req, errno);
1980 ret = connect(state->fd, &rbsda->u.sa, sa_len);
1981 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
1986 if (tevent_req_error(req, err)) {
1990 tevent_req_done(req);
1994 state->fde = tevent_add_fd(ev, state,
1996 TEVENT_FD_READ | TEVENT_FD_WRITE,
1997 tstream_bsd_connect_fde_handler,
1999 if (tevent_req_nomem(state->fde, req)) {
2006 tevent_req_post(req, ev);
2010 static void tstream_bsd_connect_fde_handler(struct tevent_context *ev,
2011 struct tevent_fd *fde,
2015 struct tevent_req *req = talloc_get_type_abort(private_data,
2017 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2018 struct tstream_bsd_connect_state);
2021 socklen_t len = sizeof(error);
2025 ret = getsockopt(state->fd, SOL_SOCKET, SO_ERROR, &error, &len);
2032 err = tsocket_bsd_error_from_errno(ret, errno, &retry);
2037 if (tevent_req_error(req, err)) {
2041 tevent_req_done(req);
2044 static int tstream_bsd_connect_recv(struct tevent_req *req,
2046 TALLOC_CTX *mem_ctx,
2047 struct tstream_context **stream,
2048 const char *location)
2050 struct tstream_bsd_connect_state *state = tevent_req_data(req,
2051 struct tstream_bsd_connect_state);
2054 ret = tsocket_simple_int_recv(req, perrno);
2056 ret = _tstream_bsd_existing_socket(mem_ctx,
2064 TALLOC_FREE(state->fde);
2069 tevent_req_received(req);
2073 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
2074 struct tevent_context *ev,
2075 const struct tsocket_address *local,
2076 const struct tsocket_address *remote)
2078 struct tsocket_address_bsd *lbsda =
2079 talloc_get_type_abort(local->private_data,
2080 struct tsocket_address_bsd);
2081 struct tevent_req *req;
2084 switch (lbsda->u.sa.sa_family) {
2096 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2101 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
2103 TALLOC_CTX *mem_ctx,
2104 struct tstream_context **stream,
2105 const char *location)
2107 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2110 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
2111 struct tevent_context *ev,
2112 const struct tsocket_address *local,
2113 const struct tsocket_address *remote)
2115 struct tsocket_address_bsd *lbsda =
2116 talloc_get_type_abort(local->private_data,
2117 struct tsocket_address_bsd);
2118 struct tevent_req *req;
2121 switch (lbsda->u.sa.sa_family) {
2129 req = tstream_bsd_connect_send(mem_ctx, ev, sys_errno, local, remote);
2134 int _tstream_unix_connect_recv(struct tevent_req *req,
2136 TALLOC_CTX *mem_ctx,
2137 struct tstream_context **stream,
2138 const char *location)
2140 return tstream_bsd_connect_recv(req, perrno, mem_ctx, stream, location);
2143 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
2144 struct tstream_context **_stream1,
2145 TALLOC_CTX *mem_ctx2,
2146 struct tstream_context **_stream2,
2147 const char *location)
2153 struct tstream_context *stream1 = NULL;
2154 struct tstream_context *stream2 = NULL;
2156 ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
2163 fd1 = tsocket_bsd_common_prepare_fd(fd1, true);
2165 int sys_errno = errno;
2171 fd2 = tsocket_bsd_common_prepare_fd(fd2, true);
2173 int sys_errno = errno;
2179 ret = _tstream_bsd_existing_socket(mem_ctx1,
2184 int sys_errno = errno;
2191 ret = _tstream_bsd_existing_socket(mem_ctx2,
2196 int sys_errno = errno;
2197 talloc_free(stream1);
2203 *_stream1 = stream1;
2204 *_stream2 = stream2;